I am installing a second 7-pin RV plug in the bed of my 93' Ram. I already have one on the bumper. My question is..........I ran into some issues and I'm troubleshooting the rear taillights and need to know what the factory wires are for the (tailights, brake lights, and turn signals). I need to know what the factory colors were. If anyone has a factory service manual that shows the rear light harness.........I would appreciate any info. I am planning to pull a new travel trailer this weekend and need to get this light issue fixed.

 

Gimme a chance to get to the house (at work right now), remove the valve-covers, loosen the valve train, and start pulling the studs from the initial 120ft/lbs on up to 135ft/lbs in 5lb increments, thirty minutes time in between.

Somewhere in those 30 minute windows I can post what you need.

 

the following info is from a 92 FSM, not 93 though, and for a sweptline box (different for cab&chassis and sport utility):

From the rear frame rail, 4 wires go to the tail light:

L7 18ga BK/YL tail
D7 18ga BR/YL stop
X2 18ga GY turn signal
B2 18ga VT/BK back up

 

Ok, so do I have this right? Black/Yellow, Brown/Yellow, Grey, and VT/Black?

What is VT? I do appreciate this lead on colors. I am actually trying to still locate a rear taillight schematic.

 

how about violet, somewhat purple?

 

just scaned this. hope it helps.

 

Opps! Gimme a minute . . .. .

 

I know this does not answer your exact question but this is what i used. My truck had this already on it with a 4 way plug. http://www.etrailer.com/pc-VWH~118317.htm

Then i used a 7 way like this http://www.etrailer.com/pc-A~30717.htm. Plugged the 4 way into that and then ran a ground, power and brake control wire. It eliminates tapping into the existing wiring.

 

Thank you! That wiring schematic does help me.

 

The image quality is high enough that you should be able to zoom in for a better view.

Left Rear Lighting . . .





Right Rear Lighting . . . .





Trailer Lighting . . .